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Old 29th Jun 2012, 18:29
  #6 (permalink)  
JimBall
 
Join Date: Nov 2006
Location: UK
Posts: 444
Well, great DK, I want to bow to you. But the POM for R44 Raven II states 4.7:1.

And, from my experience over the past 9 years flying them, I'd say it's spot on - in average circs. As I intimated, going into a glide from a hover is a different thing - and the ratio shortens.

A 90/90 R44 auto (as taught by the factory on the safety course) gives astonishing results - 90kts at 90% rrpm.
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